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Ryuichi Kosugi (小杉 竜一, Kosugi Ryūichi, born 5 July 1973) is a Japanese comedian born in Kyoto who performs tsukkomi in the comedy duo Black Mayonnaise along with his partner Takashi Yoshida. His standing position is in the left. He is represented by Yoshimoto Kogyo. In total, there are 18 recognized credits in film and television. On Cinestia you can browse Ryuichi Kosugi's complete filmography — 3 films and 15 series — and find where to watch each title.
